RIVER FALLS, Wis. | The play was the kind seen far too infrequently by the Chiefs in recent seasons, so it touched off a Super Bowl worthy celebration among their defenders, even if it happened during a recent training-camp practice. Free safety Jarrad Page knocked a pass away from rookie running back Javarris Williams on a fourth-down play during a 2-minute drill, giving the Chiefs&rsquo; defense its feel-good moment.